another thing. I did notice as I've pulled the TBI a couple times. The IAC is always "parked" at a full open position, is this normal? When I have not performed the IAC cal as noted in the TBI forums.
I have not checked the Fuel Pump cut off switch. But I have also noticed if you turn the wheel to full lock when putting a load on the engine it bogs way down as well. But there isn't a PS switch on this truck either, so I'm not sure how the computer would know to increase throttle which I'm assuming is via IAC.